Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum
Abstract Studying the evolution history of the southwest summer monsoon (SSM) throughout geological time, particularly during its strongest period in the Holocene, can improve our understanding of its variation and driving mechanisms, and even help predict future climate changes, due to its signific...
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ftdoajarticles:oai:doaj.org/article:3ce4b52aad4949149ec2ee914e8071bc 2023-12-03T10:27:03+01:00 Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum Xiaoli Yu Gen Wang Ting Zhang Xueyun Ma Xiaomei Zhang Lun Li Zelong Li Zengguang Guo Zhifu Wei Yongli Wang Shixin Zhou 2023-07-01T00:00:00Z https://doi.org/10.1029/2023GC010900 https://doaj.org/article/3ce4b52aad4949149ec2ee914e8071bc EN eng Wiley https://doi.org/10.1029/2023GC010900 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2023GC010900 https://doaj.org/article/3ce4b52aad4949149ec2ee914e8071bc Geochemistry, Geophysics, Geosystems, Vol 24, Iss 7, Pp n/a-n/a (2023) clay mineral chemical weathering intensity southwest summer monsoon Last Glacial Maximum Holocene Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.1029/2023GC010900 2023-11-05T01:35:55Z Abstract Studying the evolution history of the southwest summer monsoon (SSM) throughout geological time, particularly during its strongest period in the Holocene, can improve our understanding of its variation and driving mechanisms, and even help predict future climate changes, due to its significant social and economic implications. Here, we reconstructed the history of chemical weathering intensity since the Last Glacial Maximum (LGM) based on clay mineral proxies [(illite/smectite)/(illite + chlorite) and illite crystallinity] obtained from Qionghai Lake sediments and examined its response to paleoclimate and SSM. Our findings indicate that the intensity of chemical weathering generally aligned with changes in paleoclimate, exhibiting strong chemical weathering intensity during warm and humid climate conditions. In addition, the intensity of chemical weathering basically tracks the evolution of the SSM since the LGM. Our results support the view that the highest SSM intensity occurred during the early‐middle Holocene, followed by gradual weakening during the late Holocene, with Northern Hemisphere summer insolation being the primary driver of the SSM evolution. The variations of the SSM and the corresponding intensity of chemical weathering were also influenced by the cumulative effects of glacier boundary conditions, North Atlantic climate fluctuations, and Intertropical Convergence Zone migrations. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Geochemistry, Geophysics, Geosystems 24 7 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
clay mineral chemical weathering intensity southwest summer monsoon Last Glacial Maximum Holocene Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
spellingShingle |
clay mineral chemical weathering intensity southwest summer monsoon Last Glacial Maximum Holocene Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 Xiaoli Yu Gen Wang Ting Zhang Xueyun Ma Xiaomei Zhang Lun Li Zelong Li Zengguang Guo Zhifu Wei Yongli Wang Shixin Zhou Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum |
topic_facet |
clay mineral chemical weathering intensity southwest summer monsoon Last Glacial Maximum Holocene Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
description |
Abstract Studying the evolution history of the southwest summer monsoon (SSM) throughout geological time, particularly during its strongest period in the Holocene, can improve our understanding of its variation and driving mechanisms, and even help predict future climate changes, due to its significant social and economic implications. Here, we reconstructed the history of chemical weathering intensity since the Last Glacial Maximum (LGM) based on clay mineral proxies [(illite/smectite)/(illite + chlorite) and illite crystallinity] obtained from Qionghai Lake sediments and examined its response to paleoclimate and SSM. Our findings indicate that the intensity of chemical weathering generally aligned with changes in paleoclimate, exhibiting strong chemical weathering intensity during warm and humid climate conditions. In addition, the intensity of chemical weathering basically tracks the evolution of the SSM since the LGM. Our results support the view that the highest SSM intensity occurred during the early‐middle Holocene, followed by gradual weakening during the late Holocene, with Northern Hemisphere summer insolation being the primary driver of the SSM evolution. The variations of the SSM and the corresponding intensity of chemical weathering were also influenced by the cumulative effects of glacier boundary conditions, North Atlantic climate fluctuations, and Intertropical Convergence Zone migrations. |
format |
Article in Journal/Newspaper |
author |
Xiaoli Yu Gen Wang Ting Zhang Xueyun Ma Xiaomei Zhang Lun Li Zelong Li Zengguang Guo Zhifu Wei Yongli Wang Shixin Zhou |
author_facet |
Xiaoli Yu Gen Wang Ting Zhang Xueyun Ma Xiaomei Zhang Lun Li Zelong Li Zengguang Guo Zhifu Wei Yongli Wang Shixin Zhou |
author_sort |
Xiaoli Yu |
title |
Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum |
title_short |
Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum |
title_full |
Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum |
title_fullStr |
Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum |
title_full_unstemmed |
Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum |
title_sort |
chemical weathering intensity as a reliable indicator for southwest summer monsoon reconstruction: evidence from clay minerals of qionghai lake sediments since the last glacial maximum |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2023GC010900 https://doaj.org/article/3ce4b52aad4949149ec2ee914e8071bc |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 7, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2023GC010900 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2023GC010900 https://doaj.org/article/3ce4b52aad4949149ec2ee914e8071bc |
op_doi |
https://doi.org/10.1029/2023GC010900 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
24 |
container_issue |
7 |
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1784276623838674944 |